Supercaliber 9.9 XX1 AXS is the fastest, lightest, and most capable cross country race bike we make. The exclusive IsoStrut integrated shock is the cornerstone of Supercaliber's efficient suspension system, giving you a fast and light ride that charges through rugged terrain at breakneck speed. A high-end mountain bike parts spec features a fully wireless SRAM XX1 Eagle AXS electronic drivetrain.

It's right for you if...
You're gunning for the top spot and looking for a pro-level cross country race bike that has top-of-the-line everything. You want a bike that comes spec'd with the best parts and suspension available—including a fully wireless electronic drivetrain—for knock-out, drag-out speed and capability.

The tech you get
An ultra-lightweight, full OCLV Mountain Carbon frame with 60mm of travel, a 100mm RockShox SID Ultimate fork, and Trek's exclusive IsoStrut FOX Factory shock designed specifically for Supercaliber. Plus, a SRAM XX1 Eagle AXS 1x12 wireless electronic drivetrain, Bontrager carbon wheels with a 54-tooth DT Swiss rear hub for fast engagement, and a Bontrager RSL integrated bar/stem.

The final word
If you don't podium, sorry, but you can't blame it on this bike. Its insanely light carbon frame is spec'd for the pros using the most advanced MTB components out there, including our cutting-edge IsoStrut integrated shock and a fully wireless SRAM XX1 Eagle AXS drivetrain.

Why you'll love it
- The SRAM XX1 Eagle AXS drivetrain is smart, smooth, and completely wireless
- Our exclusive IsoStrut shock provides tuneable, damped suspension for a smooth and efficient ride without the weight of full suspension
- Pivotless seat stays save on weight and actively bend to help soak up trail chatter
- The OCLV Carbon RSL integrated bar/stem is ultralight, ultra-comfortable, and looks awesome
- Wider Kovee XXX 30 wheels provide better tire support so you can run lower pressure and get more traction